{
	class LocalStorage {
		constructor () {
			if ( localStorage.data !== "{}"  && localStorage.data === undefined ) {
				this.data = {};
			}
		}
		get data () {
			this._data = JSON.parse(localStorage.data);
			return this._data;
		}
		set data (value) { 
			this._data = value;  
			localStorage.data = JSON.stringify(value); 
		}

	}
	if ( window && !window.LocalStorage ) window.LocalStorage = LocalStorage;
}